Drivetrain |
Brompton 4 speed drivetrain, 163% range |
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Frame |
Main Frame: Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
Rear Frame: Superlight Advance rear frame made from Titanium with a replaceable hanger, redesigned suspension block and new 54mm roller wheels |
4-Bar Horst Link 29/650B+ 130 mm, 6061 Aluminum w/Custom Formed Double Butted T/T & D/T, 1.5 Taper, 12 x 148 Rear Axle, w/Replaceable Derailleur Hanger, Internal Cable |
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Stem |
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35mm Aluminum 3D Forged, Threadless 4-bolt |
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Handle Bar |
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Aluminum 35mm Riser, 780 x 15 mm |
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Fork |
Superlight Titanium fork with a threaded headset |
SR XCR34 Boost, LOR Air, S:27.5, M-XL:29”, 140 mm, 34 mm Stanchions, Aluminum Steerer, Magnesium Lowers, Hydraulic Damp, External rebound, Lock-Out, 1.5 Taper, 15QR x 110 mm |
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Seatpost |
Brompton Standard Chromoly steel tube – gloss black. Suitable for maximum inside leg 33″/83cm |
Kind Shock Exa-Form KSP-900-i, Integra w/Remote, Travel Adjust, 31.6 mm |
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Grip |
Superlight lock-on grips with precision ground lightweight foam adhered to ultrathin engineered core weighing just 42g per pair |
Q2 Lock-on |
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Crankset |
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SR Zeron, 2-pc, Boost, 30T Zig/Zag, S:170, M-XL:175 |
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Pedals |
Brompton Folding left hand and non-folding right-hand pedals |
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Chain |
Hollow pin Superlight Advance Chain |
Shimano CN-M6100 |
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Shifters |
Brompton 4 speed trigger shifter |
Shimano Deore, SL-M6100, 12s, Trigger, Right Only |
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Gear |
4-speed gear system |
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Saddle |
Fizik Aliante R7 – a comfortable saddle with lightweight performance from its Composite Carbon Nylon shell |
WTB Volt Medium SL |
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Headset |
Brompton Superlight headset |
FSA Orbit 1.5E, Zero Stack, 1-1/8”~1.5 |
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Derailleur Rear |
Patent-pending direct mount 4 speed derailleur |
Shimano Deore, RD-M6100 |
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Hub Front |
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Formula Sealed Bearing Aluminum Disc, Cassette, 12 x 148 mm Boost |
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Hub Rear |
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Formula Sealed Bearing Aluminum Disc, 15 mm, 110 mm Boost |
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Spoke |
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14G Stainless Black w/Aluminum Nipples, 32 x 32 |
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Cassette |
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Shimano CS-M6100, 10-51T, 12-Speed |
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Chainrings |
6061 forged aluminium crank with 50T chainring and integrated chainguard |
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Sprocket |
11-13-15-18 Tooth |
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Bottom Bracket |
Square taper bottom bracket |
SR Outboard Cartridge Bearing |
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Front |
Schwalbe ONE Black Tyre |
Kenda Regolith Pro, S:27.5 x 2.6”, M-XL:29 x 2.4”, 120TPI, Folding, Tubeless-Ready |
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Rear |
Schwalbe ONE Black Tyre |
Kenda Regolith Pro, S:27.5 x 2.6”, M-XL:29 x 2.4”, 120TPI, Folding, Tubeless-Ready |
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Wheel / RIM |
Front Wheel: Superlight front wheel – Lightweight rim, double-butted spokes and aluminium hub body with sealed bearings and hex key axle
Rear Wheel: Superlight 4 speed rear wheel – Lightweight rim, double-butted spokes and aluminium hub body with sealed bearings, newly developed 4 speed freehub body and hex key axle |
WTB ST=S:i35, M-XL:i29 TCS, Disc, Double Wall, 32H, Tubeless-Ready |
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